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7082381691 = 3471110111243
BaseRepresentation
bin1101001100010010…
…01001000101111011
3200021120202021020000
412212021021011323
5104001042203231
63130440004043
7340336152060
oct64611110573
920246667200
107082381691
113004902210
121457a60623
1388b3bb3c8
144b2882c67
152b6b8d6e6
hex1a624917b

7082381691 has 80 divisors (see below), whose sum is σ = 13322251008. Its totient is φ = 3642408000.

The previous prime is 7082381639. The next prime is 7082381749. The reversal of 7082381691 is 1961832807.

It is not a de Polignac number, because 7082381691 - 217 = 7082250619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7082381491) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 624316 + ... + 635558.

Almost surely, 27082381691 is an apocalyptic number.

7082381691 is a deficient number, since it is larger than the sum of its proper divisors (6239869317).

7082381691 is a wasteful number, since it uses less digits than its factorization.

7082381691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11374 (or 11365 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 7082381691 is about 84156.8873652062. The cubic root of 7082381691 is about 1920.4062446048.

The spelling of 7082381691 in words is "seven billion, eighty-two million, three hundred eighty-one thousand, six hundred ninety-one".

Divisors: 1 3 7 9 11 21 27 33 63 77 81 99 101 189 231 297 303 567 693 707 891 909 1111 2079 2121 2727 3333 6237 6363 7777 8181 9999 11243 19089 23331 29997 33729 57267 69993 78701 89991 101187 123673 209979 236103 303561 371019 629937 708309 865711 910683 1113057 1135543 2124927 2597133 3339171 3406629 6374781 7791399 7948801 10017513 10219887 12490973 23374197 23846403 30659661 37472919 70122591 71539209 87436811 91978983 112418757 214617627 262310433 337256271 643852881 786931299 1011768813 2360793897 7082381691